Hello,
I have the PRI version of your POS software.
Issue
When applying a discount in the POS system (either fixed or percentage) the end result is not translated across to the main Opencart Sales Order correctly.
For example when I give a 20% discount within POS and then to Sales/Orders and EDIT the transaction in order to move it through to the COMPLETE status the Discount is not translated to the last page of the order.